package DFS;

/**
 * @Author Fizz Pu
 * @Date 2021/5/12 下午7:09
 * @Version 1.0
 * 失之毫厘，缪之千里！
 */

public class TreeNode {
      int val;
      public TreeNode left;
      public TreeNode right;
      public TreeNode() {}
      public TreeNode(int val) { this.val = val; }
      public TreeNode(int val, TreeNode left, TreeNode right) {
          this.val = val;
          this.left = left;
          this.right = right;
      }
}
